Night-time time-lapse

[bugsplatter]

  current_tv=current_tv + (correct/50)

'Proper' smoothing adds some of the old and the new, so given a smoothing factor 'alpha', you would use: 'value = value * (1 - alpha) + new * alpha' which results in an exponential filter which should approach the final value and not oscillate if 'alpha' factor is correctly chosen.  Start with alpha = 0.33 then modify alpha to speed or slow the resulting filtered value.

I've not tried this yet as I have a different scenario I want to try, for timelapse to auto-skip night-time with longer sampling 'til start of new day.  Unless I can teach the cam to do startrails by night, dawn/dusk and cloud movie by day

[munk_e]

[I posted originally to ask about this but I just tried it and this works]

I wanted to use a max shutter speed of about 1/10 s, but the script only allows a range of 1 to 65 seconds. This is important for my use, as I'll be using it on a roadtrip for multiple days and if I'm driving, the images cannot have a long exposure to look right. It also has the benefit of preserving the time between each frame.

I changed

max_tv=sec_to_tv96(check_range(b,1,65))

to

max_tv=b

and set b to a Tv96 value that I want

[fbonomi]

I wanted to use a max shutter speed of about 1/10 s, but the script only allows a range of 1 to 65

In this case, why don't you just use a simple intervalometer?

[munk_e]

I wanted to use a max shutter speed of about 1/10 s, but the script only allows a range of 1 to 65

In this case, why don't you just use a simple intervalometer?

I wanted to have exposures through day and night transitions, and with all I've read here I suspected it wouldn't work as day breaks. Your post had me studying a bit more and I see I just needed to learn how to configure the settings correctly for my project. I did a few simple tests with yass v2 and it does indeed get the exposure correct when there's more light after darkness. With so much to learn, I guess I got ahead of myself and didn't see the simpler approach, thanks!

[nahuel_89p]

Wow wow wow, what is LUA? How do i install this beautyful feature in my Canon 350D?

[reyalp]

Wow wow wow, what is LUA? How do i install this beautyful feature in my Canon 350D?

As several people have tried to tell you, CHDK does not run on DSLRs. For information on the hacks run on 350D, you should consult the threads for those hacks.